Drilling-machine



N M l.)

e F. H. RICHARDS.

DRILLING MAGHINE.

N0. 419,070. Patented Jan. 7, 1890.

EEE%E%EE@EE N. PFVERS Pho1D-Lilhogl-upher. Washington D4 c.

UNITED STATES PATENT OFFICE.

FRANOIS H. RICHARDS, OF HARTFORD, OONNECTIOUT, ASSIGNOR TO ECKLEY B. COXE, OF DRIFTON, PENNSYLVANIA.

DRlLLlNG-MACHINE SPEGIFICA'IION forming part of Letters Patent N0. 419,070, dated. January 7, 1890.

Applicafcion filed December 6, 1888. Serial N0. 292,842. (N moel.)

T0 aZZ w7wm may concern: 0f ehe sin1ilar pairs cf gez1rs 17 a11d 18 and 19 Be it kncwn thao I, FRANCIS II. RICHARDS, and 20. The gears 18 2111d 20 are fixed t0 13116 21 citizen 0f the United States, residing 210 cranksl1afts 14 2111d 15, rcspectively. Apul- I-Iartford, in tl1e c0unty 0f Hartford 211161 Staie ley 21 is provicled t0 nehmt-e sl1aft 16, wl1ich 55 0fOonnecticut,haveinvencdcertainne1vancl is carried in bearings 22 23 011 bean:1 12.

nseful Improvements in DrillingMachines, The clrillspindles 30111e cra11ked spindles,

cf wl1iel1 tl1e following is 21 specification. and tl1e c1ank is about miway 0f (tl1at is,

This invention relates t0 multiple drillingbetween) the beari11gs cf tl1e d1ill-spindle. macl1ines, the objeet being o0 furnisl1 21 11121- Tl1e series 0f spindles are carried 111 lower 60 chine of that dass especially adapt-ecl f01 siand upper bearing-blocks 40 a-11cl 42, z1ffixecl multaneously clrillingaseries 013 l10les,of wl1ich '00 tl1e lower 2111d upper bean1s, respect-ively.

sonne eure in close proxirnity t0 others, a11d In tl1e lower bearingblock 21 tl1in bushing 41 also to provide f01' the convenient substit-um21y be inserted to provicle 21 suitnble beartion 0f 011e set of Grills, togetl1er Witl1 tl1ei1 ing-snrface wl1en tl1e material of tl1e block 65 driving-spinclles, f01 anotl1er such set 0011- ifse1f 1s110t suitable tl1e1efor. Screws 43 serve strncted forclrillingholes clii1'erently arra11gecl. [0 Secure this lower bearing-block 130 tl1e lower In the drawings accompanying ancl f01111- bezun. In tl1e upperbez1ring-block 42 adjusting 21 part 0f tl1is invention, Figu1e 1 is 21 side able steps 44 11121y be providecl t0 fu1niSh a, elevation of 21 drilling-machine emboclyingmy suitable upper bearing f01 tl1e clrill-spindle, 7c

f improvemenos. Fig. 2 is a f1011t elevation of 2111cl to tz1ke up the wear thereof. Tl1e step the sz1n1e. Fig. 3 is a horizontal section in 44 is represcnted es screwed 11110 tl1e seid 1ine a a, Fig. 1 Fig. 4 1s 21 vertical section block, so as t0 be capable cf vertical acljustin line Z1 b, Fig. 3. 11101113, being held 111 position when acljustec1 Similar characters clesignate lik.e parts in by 21 check-nut 45, 2111C1 as having the ordi- 75 all ehe figures. nary stopscrew 46. The several drin-spin- The fran1e-work cf 1ny improved d1illingdles being subsrantially cluplicates 0f eacl1 machine consists 0f son1e suitable colu1nn A, 0tl1er, they mz1y be p1aced very close togethcr, whicl1 carries the clrillingmechanisn1andl1as as sl1ownas, f01' instance, the contiguous deviccs f0r supporting tl1e table T, 011 wl1ich spindles ancl SO. It shoulcl be noted l1e1e 0 are placed the pieces, es 8, 10 be drillecl. tl1at I refer t0 tl1e spinclles without choice as These clevices consist, 21s shown in tl1e dmwspindle 30 01 spindles 30, and 130 otl1er ings, 0f vertical ways furnisl1ecl Witl1 caps 2 duplicated details in like manne1u and 3 f01 the slicle S. In seid caps Lb.e lever- F01 actuating the several (l11'll-spindleS, tl1e shaft 4 has its bearings, {111d seid sl1aft 4 has cmnks 31 tl1e1eof are fitted (eitl1er Witl1 01 3 5 fixed thereon 21 gear 5,111esl1111g Witl1 tl1e rack witl10ut the busl1ing 01 roller 32) into a, driv- I 6, thatis affixecl 10 said slide 111 21 well-known ing-block 26, tl1z1t corresponcls t0 tl1e uppe1 manner. The shaft 4 is provicled with tl1e 211111 10wer bearing-blocks. Tl1us tl1e saicl usualhandle 01 lever 7, f01' operating tl1e sl1aft (l111i11g43100k is (in 21 sensc) cz1rried by the and slicle. Shops 01' lil;e wellknown clevices spindles i1nd these by tl1e bearing-blocks, so 40 (1101: shown) 11121y be employed t0 limit as 1eahnt tl1e ul1ree blocks constitute 21 ren1ovable quired tl1e vertical movement cf tl1e table, Set 0f spindle snpporting 211101 aetuating (1ealso t0 hold in place 011 seid fahle the pieces vices, wl1icl1 sei; may be put in place 111 ehe t0 100 clrillecl. macl1ine 01 taken tl1erefron1 altogethe1. T110 That part cf tl1e franw=wcrk 11 111c111111111eblock 26 is secured by screws 33 (Witl1 o1 45 diately carries tl1e drillingmechanism consists 1vitl1out the tongue and groove 36) t0 the in a lower plate 01 beam 10, an upper bean1 gyratory driving:bar 25, W111011 is carried 011 12, Walls 1.1, connecting seid bean1s,i1nd beartl1e 01 211111s 14' and 15 cf tl1e a-foresaid drivings 13 for tl1c drivingshafts. Tl1e principal ingsl1afts. 111 2111 tl1e figures this bar is driving-shafts are tw0 11prigl1t and si1nilar shown standing 111 its 1'GEL1WELI.130S1fil011;bl113 50 cmnk-shafts 14 15, 211161 these are 013 n1ay be tl1is appenrs tl1e 11101e clearly fro1n Figs. 1, 3, similarly clriven f10n1 one shaft 16 by 111e2111s and 4.. T 10t21ti011 0f tl1e cranks imparts a gyratory movement to the bar 25, and thu s earries the drivingbloeks in circnlar move ment corresponding t0 the mdius of the dri11- spindle cranks, whieh is equal to that 0f the driving-cranks. This turns all of the Spin dles 30 simultaneously.

In preparing t0 use the machine fpr the diil1ing of any particular article-as f0r instance, the bed-plate of a sewing-machine, a mowing-machine cutter-bar, 01 oher article requiring severa1 holes 130 be drilled therein it is of course necessary t0 provide a suitable Set 0f driving and bearing bloeks in Which the distances anc1 arrangement 0f the spindl6 bearings shall properly correspond '00 the required arrangement 0f holes in the said article.

By means of the construction herein Set forth the several spindles rnay be placed in with the frame-work, 0f the severa1 sets of removable upper and lower bearing-blooks, the' emnk-shafts j ournaled in the frame-work, the

the utmost proximity 130 each other without interfering With the operating 0f the Same. 'Ihe use of the pressure-resisting steps ab ehe upper ond of the spindle seeures amp1e vvearing-surface for that purpose and obviates the necessity for eollars below the lower bearing, which eollars wou1d obvious1y require the spin dles to be p1aced farther apart, and thus render the machine unusab1e on some kinds 0f Work otherwise Within its capacity.

F01 seeuring the several drills 35 into their respective spindle-sockets, I prefer the coustruction described in my concurrent applitanee between the adjaeent drill-spindles is sufficient any of the well-kn-cwn forn1s 0f dri11- holding 'chucks may be substituted f01 my said other improvefnent.

Having hus described my invention, I c1aimblocks, anc1 a driving-block fitting on the cranks of said spindles and ca rried by said driving-bar, said blocks being removably seeured in place and eonstituting a set of 0017- respondirig bearings, all substantially as described.

2. In a drilling-maehine, the combination, with the frame-work, of the removable upper and lower bearing-bloeks having bearings for drill-spindles, the emnk-shafts, the gyratory driving bar monnted 011 and connecting said shafts, the removable spindle-driving block 1nounted 011 said bar, and 1;he intermediately-eranked spindles journaled in said bearing-blocks and passing through said driving-block, substantially as' and for oho purpose shown.

3. In a drilling-machine, the combination,

gyrator5 driving-bar mounted on ar1d counecting said shafts, the severa1 sets of reniov- 1 ab1e spindle-driving blocks, similar in numb er to the sets 0f bearing-blocks, and the several ets of cranked spindlessnbstantially as and for the purpose set forth.

4. In a drilling-machine, the combination,

1 with the frame-work having upper and lower bearings f0r a series of spindles, 0f the series 0f spindles j ournaled at upper and lower ends cation, Serial N0. 292,841; bun When the dis- 1 spindles being cranked intermediatesaid ;bearing-blocks, a gyratory driving-bar, and I several gyratory driving-blocks mounoed on said spindlecranks and removably connecting them With said driving-bar, substantially as and f01 the purpose describ6d. l. In a drilling-maehine, a lower.beam an upper beam, a gyratory driving-baf inter- 1 mediate 10 said bearns, a bearing-block on j the lower beam, a step-bearing block on the upper beam, eranked spindles carried by said in several removable bQaring-blocks, said FRANCIS H. RIOHAR'DS. WVitnesses:

SAML. W. POWEL, HENRY L. RECKARD. 

